18
Note
Type WWC 351.A07 is illustrated. In this
case, the circulation pumps are fitted and
connected at the factory (primary pump
qT
, secondary pump
6
incl. check
valve, circulation pump for cylinder heat-
ing
7
incl. check valve, instantaneous
heating water heater
4
optional).
In type WW 351.A07, no circulation
pumps are installed at the factory. For
the connection, see "Electrical installa-
tion scheme".
Equipment required
Pos.
Description
1
Heat pump
2
Heat pump control unit
qT
Primary pump
qO
Frost stat, primary circuit
wP
Brine accessory pack
wQ
Pressure switch, primary circuit
wW
Separating heat exchanger, primary circuit
wE
Flow switch, well circuit (remove jumper when connecting)
wR
Dirt trap
wZ
Well pump (suction pump for groundwater; connect via on-site contactor
with fuse protection)
■ 230 V connection: See page 19
■ 400 V connection: See page 19
wU
Delivery well
wI
Return well
Electrical installation scheme
For an overview of the electrical connec-
tions and more information on the PCBs,
see from page 76 and the separate
service instructions for the Vitotronic 200
heat pump control unit.
Preparing for installation
Primary circuit, type WW/WWC (water/water)
(cont.)
5609 667 GB
